Spirit-level.



W. L. COUTURE.

SPIRIT LEVEL.

APPLICATION FILED IA.3,190B. 901,953. Patented 00u27, 190s.

.UU li WILLIAM L. COUTURE, OF SAN FRANCISCO, CALIFORNIA.

SPIRIT-LEVEL.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed March 3, 1908. Serial Nol 419,052.

To (LZZ whom Lt may concern:

Be it known that I, WILLIAM L. COUTURE, a citizen of the United States, residing at 116 California avenue, in the city of San Francisco, county of San Francisco, State ot California, have invented a new and use- .iul Improvement in Spirit-Levels, of which the following is a specificati on.

The object of my invention is to so place and secure the ordinary glass tube in the supporting body as to prevent the breakage by the jar of said body when thrown or dropped from the hand of the user, and to provide for the easy removal and insertion o't said glass, in said body, and its accurate adjustment therein, a most desirable instrument for the use of mechanics.

The manner in which I accomplish my object is described in the following specification and illustrated in the accompanying drawings in which Figure l, is a side elevation of the supA porting body showing the level secured therein in two positions, one for vertical and the other for horizontal leveling; Fig. 2, is a transverse sectional view on the line 2-2 Fig. 1; Fig. 3, represents a plate on which the glass tube is secured.

In the drawings A, is the main body or straight edge in which the glass tube B, is mounted in the apertures A1. In one of these 'apertures are two screw bolt holes, A2, which extend diagonally through the body A, as shown in Fig. l. Extending through each of these screw bolt holes is a screw bolt C, each of these screws is provided with a soft rubber washer C1, and a nut C2.

Resting upon the washers C1, and secured on the bolts C, is a bracket D, having notches D1. Secured to the face of this bracket by the tie wire E, is a soft rubber tube F, and inside this is the glass spirit tube B.

The center part of the rubber tube F, is cut away suiiicient t`o allow the center part of the glass tube to be seen. In the other aperture A1, are two screw bolt apertures A3, extending through the body A, at right angles to its length. Extending through each of these apertures is a screw bolt Gr, each of these screws is provided with a soft rubber washer G1, and G2. Resting on these rubber washers and secured on the bolts G, is a plate H, having notches H1. Secured to the face of this plate by the tie wires I, is a soft rubber tube J. Inside this tube is a glass spirit tube B, the center part of the rubber tube is cut away sufficient to 'allow the glass tube to be seen.

Thenthe level is constructed as described and the spirit tube in place in the body, the adjustment of the tube for perfect leveling can be accomplished by a screw driver by which the screw bolts C, and Gr, can be operated and the plates D, and II, be drawn at either end upon the rubber washers which will yield under pressure sutlicient to allow of the adjustment ot' the spirit tube to the vertical and horizontal levels. And it is obvious that the glass tube can only be broken by a blow on the small part exposed to view, and that concussion and jar will not affeet it.

What I claim and desire to secure by Letters Patent is:

1. In a level of the kind described having a main body with apertures therein, the combination consisting of an adjustable supporting plate in each of said apertures, screw bolts exten ding through said body and plate, nuts on said bolts in contact with said plate, elastic washers on said bolts intermediate of said plate and main body; an elastic tube secured to said plate, means for securing said tube on said plate, and a glass tube secured within said elastic tube as described.

2. In a level of the kind described having a main body with an aperture therein; the combination consisting of a plate within said aperture; screws through said body and plate; an elastic body intermediate of said main body and said plate; a hollow elastic member secured on said plate; means adapted to secure said member on said plate; a spirit glass partly inclosed and secured in said elastic member as described.

3. In a level ot the kind described, the combination with the main body having an aperture, ot a plate supported in said aperture, elastic members intermediate of said plate and body; means for securing said plate on said members in said aperture; an elastic hollow member secured on said plate means for securing said member and a spirit glass supported within said elastic member as described.

4. In a level of the kind described, the combination with a main body having a plurality of apertures; of a plate in each of said apertures; elastic members intermediate of said plates and body; means for securing said plates and members 1n said apertures an 15 combination with the main body; a plate I elastic hollow member secured on each of said plates; means adapted to secure said members to said plates; and a spirit glass supported in each of said hollow members as described.

5. In a level. of the kind described, the combination with the main body, a plate supported therein; of elastic cushions intermediate of said plate and body; means for securing said cushions and said plate on said body; a hollow elastic member secured on said plate and a spirit glass secured within said hollow member as described.

6. In a level of the kind described, the,

elastically supported therein; of a hollow elastic member secured on said plate, and a spirit glass secured within said hollow member as described.

7. In a level of the kind described, consisting of a main body, a plate elastically secured therein; and a hollow elastic member secured on said plate; the combination with said hollow member of a spirit glass supported therein as described.

WILLIAM L. COUTURE.

I/Vit-nesses JOI-1N C. Joosi, WILLIAM A. BnAcE. 

